Window-awning



(No Model.)

J. E, DWINELLE. Window Awning. No. 231,548. Patented Aug. 24, 1880.

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UNITED STATES PATENT GEEIQE.

JAMES E. DWINELLE, ()F BALTIMORE, MARYLAND.

WINDOW-AWNING.

SPECIFIOATIN forming part of Letters Patent No. 231,548, dated August 24, 1880.

Application filed July 14, 1880. (N 0 model.)

To all whom it may concern:

Be it known that I, JAMES E. DWINELLE, of the city of Baltimore and State of Maryland, have. invented an Improved Window- Awning, of which the following is a specification; and I do hereby declare that in the same is contained a full, clear, and exact description of my said invention, reference being bad to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to the novel construction of a window-awning whereby the upper, as well as thelower, end thereof may be opened and the said awning thereby adapted to be placed in various positions to shade the window and effect a proper circulation of air in the chamber.

Window-awnings as ordinarily constructed have but one usethat of shading the windowand as they are closed at the upper end a body of heated air is accumulated between the window-sash and awning, which gradually passes to the chamber through the window. Further than this, after the 'suns rays have passed from the awning of ordinary description and the lower end of the awning is raised to allow of the free passage of air to the chamber, the heat radiated from the exterior of the wall is carried with the cool air to the chamber, and the cooling operation thereby retarded.

With my improvements, as hereinafter more particularly described, the accumulation of air between the awning may be prevented and the device arranged as a ventilator to carry oii' heated air from the room, while at the same time the entrance of heat radiated from the exterior of the building and the pavement is obviated.

In the further description of my said invention which follows, reference is made to the accompanying drawings, forming a part hereof, and in which- Figures I, II, and III are perspective views of the improved awning, illustrating the various positions in which it may be placed. Fig. 1V is a perspective view of the frame of the awning.

Similar letters of reference indicate "similar parts in all the views.

A is the frame of the awning, consisting of an upper and a lower bent bar, respectively designated by a and I), which are pivoted together at their ends and secured to the window-frame by means of screws 0.

B is the awning-cover, attached at its upper and lower ends to the bars a and b and at its lateral edges to the window-frame by means of buttons. By means of this construction the awning is practically divided into two sectionsan upper one, which is designated by d, and a lower one, denoted by e-either of which sections can be opened or closed independently of the other.

Various cords and pulleys are employed to alter the position of the awning, as hereinafter described; but such cords, &c., as they constitute no part of my invention, are omitted from the drawings, in order to avoid com plication of lines.

In Fig. I the awning is shown as closed at the top and open at the bottom, and in this position it resembles the window-awning commonly in use.

In Fig. II the upper and lower sections of the awning are both represented as open. When the awning is placed in this position a current of air passes through it and carries off hot air from the room, thereby effecting a circulation of air similar to that produced by a chimney.

In Fig. III the awning is shown as open at the top and closed at the bottom. In this position the awning prevents the entrance to the room of heated air from the pavement and the walls of the building, but allows pure cool air to pass to and hot impure air from the room.

If the wind should be from such a quarter as to pass along the wall without entering the window, a portion of the side of the awning facing the wind may be unbuttoned and allowed to fall inward, when the device would act in a similar manner to a wind-sail used on board of ships to convey air between decks.

A hood (shown in dotted lines, Fig. III of the drawings) prevents the rays of the sun, when at or near the meridian, from entering the awning when the upper section, 61,18 open, as shown in the said figure.

I claim as my invention- 1. A window-awning provided with the section cl, adapted to be opened or closed independently of the remaining section 0 of the same, substantially as and for the purpose herein specified.

2. A window-mvning consisting of the bent bars a and I), hinged together at their ends and adapted to he adjustahly attached to a window-frame by means of screws 0, combined with the cover B, which is connected at its upper and lower edges, respectively, to the said bars a and b, substantially as and for the 10 purpose herein specified.

JAMES E. DWINELLE, M. D.

Witnesses:

Jos. II. ANDOUN, WM. T. HOWARD. 

